| allobilharzia visceralis gen. nov., sp. nov. (schistosomatidae-trematoda) from cygnus cygnus (l.) (anatidae). | in iceland, the examination of whooper swans (cygnus cygnus l.) viscera resulted in the detection of adult digenean flukes of the family schistosomatidae. the mature worms occurring in the blood vessels of the large intestine and mesenterium caused vascular lesions, around the eggs deposited in the intestinal mucosa and liver granulomatous reactions developed. the morphology of the isolated schistosomes shows certain similarity with the flukes of the genus trichobilharzia; in males reduced gynec ... | 2006 | 16627001 |
| the occurrence of the avian schistosome allobilharzia visceralis kolákrová, rudolfová, hampl et skirnisson, 2006 (schistosomatidae) in the tundra swan, cygnus columbianus (anatidae), from north america. | twelve tundra swans, cygnus columbianus (ord), from nevada and one from new mexico were collected and examined for schistosomes. mature worms, determined as allobilharzia visceralis, were found in 92% of the swans, in the inferior mesenteric vein of the large intestine and its branches. in 12 cases, there was endophlebitis of the inferior mesenteric vein. the morphology of the worms is consistent with the recently described genus allobilharzia. placement in this genus was confirmed also by phylo ... | 2007 | 17886738 |
| diversity of bird schistosomes in anseriform birds in iceland based on egg measurements and egg morphology. | radix balthica is the only freshwater mollusc in iceland that has been found to be the intermediate host of ocellate furcocercariae. infections are common. on average, 4.8% out of almost 7,000 snails examined during 2003-2006 were found to shed cercariae in late summer and autumn. search for adult bird schistosome worms, eggs and miracidia in the intestines and in the nasal cavity of 110 water birds of the orders gaviiformes (one species), podicipediformes (one species) and anseriformes (nine sp ... | 2008 | 18299894 |
| avian schistosomes in french aquatic birds: a molecular approach. | the prevalence of human cercarial dermatitis (hcd) caused by bird schistosomes appears to be increasing in france, in light of the impact of tourism combined with high densities of wild aquatic hosts in freshwater areas. the present work expands our knowledge of schistosome systematics by including samples of bird schistosomes collected from their natural hosts in france. heads (318) and viscera (81) of aquatic birds belonging to 16 species from five orders, collecting during the hunting seasons ... | 2009 | 19356266 |
| a review on swimmer's itch and the occurrence of bird schistosomes in iceland. | in the past decade, swimmer's itch (si) has repeatedly occurred in people who have been wading or bathing in ponds or lakes in iceland where water birds and snails are abundant. some of the affected sites were warmed by geothermal activity, and others were not. a search for the causative agent of si, ocellate furcocercariae that have been found in iceland only in radix peregra snails, revealed an average infection prevalence of 1.4% (n = 12,432). locally, infection rates commonly exceeded 6%, th ... | 2009 | 19368747 |
| first detection of allobilharzia visceralis (schistosomatidae, trematoda) from cygnus cygnus in japan. | adult schistosomes were detected in the veins or capillaries of the large intestine, mesentery, liver, and adrenal glands in eight of 13 whooper swans (cygnus cygnus) examined in iwate prefecture, japan. however, neither eggs nor severe tissue injuries were observed in any of the swans. the schistosomes were definitively identified as allobilharzia visceralis based on the nucleotide sequences of the ribosomal internal transcribed spacer (its) region. allobilharzia visceralis infections have been ... | 2017 | 27776999 |